Portion of a top panel for an office machine



FIG. 1 is a perspective view of a portion of a top panel for an office machine showing the design of the present invention;

FIG. 2 is a front view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a top plan view thereof.

The broken lines showing in FIGS. 1-6 are for illustrative purposes only and do not form part of the claimed design. 

The ornamental design for a portion of a top panel for an office machine, as shown and described. 